Successful Closed Reduction of a Dislocated Constrained Total Hip Arthroplasty: A Case Report and Literature Review

Motoki Sonohata*, 1, 2, Warit Waewsawangwong 1, 3, Stuart B Goodman 1
1 Department of Orthopaedic Surgery, Stanford School of Medicine, Stanford University, Stanford, California, USA
2 Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
3 Department of Orthopedic Surgery, Somdej Prapinkao Hospital, Bangkok, Thailand

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© Sonohata et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga 849-8501, Japan; Tel: +81-952-34-2343; Fax: +81-952-34-2059; E-mail:


Many surgeons use acetabular components with constrained polyethylene liners to improve stability after total hip arthroplasty in patients with a history of hip dislocation. Surgical treatment is generally thought to be the only available option for the dislocated constrained liner. The success rate and clinical results of closed reduction for such patients is unclear. This report presents a case of a successful closed reduction of a dislocated constrained liner. Few papers have so far addressed closed reduction of a dislocated constrained liner. Furthermore, previous studies reported a variety of components. Publication of additional successful and unsuccessful case reports is therefore needed to help establish the optimal treatment protocol for a dislocated constrained liner.

Keywords: Closed reduction, dislocation, acetabular, constrained liner, total hip arthroplasty, complication.